Retain original parent/child scope and prior native-generation proof across exit settlement and token retries. Keep historical scope separate from signal authority, count each supplied snapshot once, and share one existing native-exit deadline throughout cleanup.
Validated 387 affected tests (one Darwin-only skip), five controls repeated three times, and 30 synced-main integration tests (one platform skip). Synced-head static, architecture, docs and discovery checks pass; real GDB qualification passes 44 CLI/MCP cases. Native-observer edge controls are simulated.
Assisted-by: Reimu (gensokyo-skills:reimu-incident-triage)
Assisted-by: Kogasa (gensokyo-skills:kogasa-surprise-testing)